Communication network congestion control method

Abstract

The invention discloses a congestion control method for a communication network, which pertains to the field of network communication. The method comprises the following steps: when a certain information source point excessively sends data and one or more congestion points are caused in the communication network; each congestion point can generate a series of congestion events which drive a preset responsibility point calculating process. A responsibility point R of the information source point is obtained when the calculation of the time span of a T tempo is accumulated; during a preset appraisal period, the responsibility point R of every T tempo is accumulated, and a total responsibility point U of the information source point is obtained; according to the total responsibility point U and a preset punishing strategy, punishment with sufficient strength is carried out to the information source point so as to force the information source point to limit flow consciously. By establishing a supervision mechanism, the method causes the information source point to limit flow consciously, thus saving a flow shaping module at the edge port of the communication network, eliminating the main cost burden for the whole network to realize congestion control and remarkably lowering realizing cost for promising the communication network of QoS as a whole.

Description

A method of congestion control in a communication network technical field The invention relates to the field of network communication, in particular to a method for controlling congestion of a communication network. Background technique Congestion Control (CC for short) is a necessary function for an effective communication network that promises QoS. For commonly used basic IP networks, there is no CC function at the network layer, but an end-to-end CC function is provided at the transport layer ( TCP protocol), because there is no strong support for the CC function of the network layer, the CC function provided by the transport layer is greatly limited. With the continuous improvement of people's requirements on the performance of communication networks, researchers have made unremitting efforts to propose communication networks such as IP networks and ATM networks that support RSVP, and try to provide CC functions at the network layer. To this end, traffic shaping (Tra...

AI Technical Summary

Problems solved by technology

It is not a problem to realize the traffic shaping distribution of the end station equipment, but the traffic shaping operations at the edge of the network are concentrated in a large number, which is the main problem

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